Mientras tengas instaladas las librerias qt puedes ejecutarlo en gnome o en el que sea.
QT
int main( int argc, char **argv )
{
QApplication a( argc, argv );
QPushButton hello( "Hello world!", 0 );
hello.resize( 100, 30 );
a.setMainWidget( &hello );
hello.show();
return a.exec();
}
GNOME
#include <gtk/gtk.h>
static gint delete_event_cb(GtkWidget* w, GdkEventAny* e, gpointer data);
static void button_click_cb(GtkWidget* w, gpointer data);
int
main(int argc, char* argv[])
{
GtkWidget* window;
GtkWidget* button;
GtkWidget* label;
gtk_init(&argc, &argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
button = gtk_button_new();
label = gtk_label_new("Hello, World!");
gtk_container_add(GTK_CONTAINER(button), label);
gtk_container_add(GTK_CONTAINER(window), button);
gtk_window_set_title(GTK_WINDOW(window), "Hello");
gtk_container_set_border_width(GTK_CONTAINER(button), 10);
gtk_signal_connect(GTK_OBJECT(window),
"delete_event",
GTK_SIGNAL_FUNC(delete_event_cb),
NULL);
gtk_signal_connect(GTK_OBJECT(button),
"clicked",
GTK_SIGNAL_FUNC(button_click_cb),
label);
gtk_widget_show_all(window);
gtk_main();
return 0;
}
static gint
delete_event_cb(GtkWidget* window, GdkEventAny* e, gpointer data)
{
gtk_main_quit();
return FALSE;
}
static void
button_click_cb(GtkWidget* w, gpointer data)
{
GtkWidget* label;
gchar* text;
gchar* tmp;
label = GTK_WIDGET(data);
gtk_label_get(GTK_LABEL(label), &text);
tmp = g_strdup(text);
g_strreverse(tmp);
gtk_label_set_text(GTK_LABEL(label), tmp);
g_free(tmp);
}